Cutting device



' H. E. sLoAN CUTTING DEVICE Feb, 22 m3,

Filed Aug. 2 1920 5 sheets-sheet l Feb. 27, 1923.

H. E. SLOAN CUTTING DEVICE 2, 1920 5 sheets-Shem 2 Filed Aug.

Feb 27,, 11923 H. E. SLOAN I CUTTING DEVICE Filed Aug. 2-, 1920 5 she ats-sheefl //V lI/E/E/ 7 03. firz'yzszawn By C I a I ArTQW -M Patented Feb. 27, l223.

hti itiflit FATENT HARRY E. SLOAN, OF PHILADELPHIA, PENNSYLVANIA.

CUTTING DEVIGE.

Application filed. August 2, 1920. Serial No. 400,856.

T 0 all whom it may concern.

Be it known that 1,1'EARRY E. SLOAN, a citizen of the United States, residing at the city of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a certain new and useful ln'iproved Cutting Device. of which the following is a specification.

This invention generally stated relates to power-driven cutting devices and has more especial relation to apparatus for cutti to desired lengths rules, slugs and the like such as used by printers and for mitering same to required angles.

The leading object of the present invention may be said to reside in the providing of a device of this character of simple efficient and. comparatively inexpensive con struction which may be readily and expeditiously manipulated. A further object of the present invention is to provide improved facilities for driving the cutter; improved facilities for clamping work in position before the cutter; improved facilities for securing the guide plate with respect to the table and to provide improved facilities for guarding the operator against flying parts during a cutting operation.

With the foregoing and other objects in view as will hereinafter be more fully described, the invention consists of the improvements hereinafter described and finally claimed.

The nature. characteristic features and scope of the invention will be more fully understood from the following descriptioir taken in connection with the accompanying drawings forming part hereof, and in which:

Fig. 1, is a top or plan view, partly sectioned, of the improved cutting device of the present invention.

Fig. 2, is a. view thereof in end elevation, partly sectioned.

Fig. 3, is a fragmentary view, partly sectioned, illustrating details of construction of the work holder and clamp.

Fig. 4, is a top or plan view, partly sectioned, of certain of the parts shown in Fig. 8.

Fig. 5, is a view in elevation, partly sectioned, illustrating the manner of driving the cutting device, and

Fig. 6, is a fragmentary view, partly sectioned, showing the manner of securing the guide plate with respect to the table.

For the purpose of illustr ting my invention l have shown in the accompanying drawings one form thereof which is at pres cnt preferred by me, since the sanie has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously rranged and organized and that my invenion is not limited to the precise arrangement and organization of the instrumentaliies as herein shown and described.

In the drawings, 10 designates a base plate rising from which is a substantially til-shaped standard 11 provided with ways 12. Guided in the ways 12 for vertical reciprocation is a slide 13. Carried by the upper portion of said slide is a horizontally disposed driving head. Generally stated, the driving head comprises a. horizontally disposed drive shaft 14, adrive pulley 15 and afly wheel 16. The shaft 142 is mounted in ball bearings 17, supported by a. frame 18 fixed to the slide 13. Fixed to' shaft i l is a rotatable cutter 19. In practice best results have been obtained by the employment of a circular saw. 20 designates the slide operating lever fulcrumed as at 21 to standard 11 and pivoted as at 22 to slide 18. The lever 20 is provided at one end with a weight 23 for counter-balancing purposes. The cutting device 19 may be caused to advance toward or away from table 24 by movement of lever 20 in the proper direction. Table 24-, which is horizontally disposed and is of semi-circular configuration, is supported by lugs 25 carried by standard 11. Table 24 has extended therethrough an arc-shaped slot 26 for the guidance of a sectorshaped guide plate 27 forming partof a miter-angle. The plate 27 is secured with respect to the table 24 by means of a bolt 28 which passes upwardly through slot 26 and has screw threaded relation with plate 27 as at 29. A spring 30 is interposed between the head 31 of said bolt and the underside of table 24. By adjustment of bolt 28 the tension of spring 30v may be regulated to provide desired frictional en gagement between plate 27 and table Plate 27 is provided with an outwardly and downwardly projecting extension 32, mounted in which is a horizontally disposed spring-pressed plunger 33 adapted to cooperatively engage notches 34k of table By moving plunger 33, by means of finger piece 35, out of engagement with a notch of table 24 plate 27 may be moved to. any desired angle. Plate 27 is provided with a horizontal extension 36 and the plate including said extension is provided with a vertical edge-bar 37. Paralleling edge-bar 37 is a toothed and graduated bar 38. Movable along edge-bar 37 and cooperatively engaging with the toothed portion of bar 238 is a conventional stop 39. The stop is provided with an. inwardly extended tongue 4-0. Carried by tongue ll) is a work clamp comprising a bifurcated member ll passing through which is a vertically disposed pin 42 adapted to co-operatively engage with which is a spring-pressed detent 43. The part of detent 4L3 adapted to engage with pm 42 is notched as ate a and 45 and is relatively claw-shaped as at ac. Adjacent notch 4A=-the detent is provided with a horizontal pin 47 and adjacent notch 4.5 said detent is provided with a similar pin 48.

As clearly shown in Fig. i notch 44 of detent 4:3 is in engagement with pin 4-2 and pin 4-? is in abutting relation with pin 4. In this position of parts the end of claw L6 projects beyond the end of member ii. In this position'one or a plurality of rules or slugs 49 may be clamped in abutting position with tongue IO and edge-bar 3721s clearly shown in Figs. 3 and l. lVheu cutting large sections of rules or slugs, it is desirable to dis- 40 regard the clamp and hold the rules or slugs by hand. For this purpose, it is necessary to move the detent 4L3 rearwardly so that the claw end 4E6 thereof does not project beyond the edge of tongue 40. To accomplish this end, the operator shifts detent 43 so that notch 45 engages with pin 42 and pin 4-8 abuts against pin 4-2. The above construc tion provides a very simple and efficient manner in which to accomplish shifting of detent 43; Fixed to the underside of edgebar 37 is a horizontally disposed plate 50 upon. which the rules or slugs as may rest when in clamped position. Carried by standard 11 is an inverted U-shaped guard 51 for protecting the hands of the operator from the revolving cutter. That portion of guard 51 which faces table 24L is provided with an opening 52 so that the operator may view the cutter during its downward movement. In order to limit the downward movement of cutter 19 the bottom of slide 13 is provided with a stem 53. This stem has screwthreaded relation with slide 13 so that ad justment may be made and a lock nut 54. is

present to secure the stem in adjusted position. To limit the upward movement of cutting device 19 a horizontally disposed pin 55 may be fixed to slide 13 which pin is adapted to abut against the underside of table 24:. In order to accumulate flying particles of material, as severed by the cutting device, a guard 56 is carried by table 2%. A. lubricating device 57 carried by a fixed part of the driving head impinges against one face of cutting device 19 and a similar lubricating device 58'is carried by guard 51 Ior impinging against the other face of the cutter.

A description will now be given of the manner of using the above described cut ting device. Power being imparted to drive shaft 14 from any suitable source. plate 27 is positioned as shown in Fig. 1 if a straight cut is to be effected or is shifted to a proper angle if a bevel is to be cut. Stop 39 is then adjusted to secure a proper length of rule embodies the features of advantage enumer ated as desirable in the statement of the invention and the above description and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, itis to be understood that the same is susceptible of modification in various particulars. without departing from'the spirit orscope of the invention or sacrificing any of its advantages. What I claim is: 1. In a device of the character stated a standard, a table fixed thereto, a slide mounted unon said standard, a cutter rotatably carried by said slide and adapted to co-operate with an edge of the table top, an opcrating lever fulcrumed to said standard and having pivotal relation with said slide for moving saidv cutter toward or away from the table top, means connected with said lever for automatically returning 1t to normal p0 sition, and adjustable means between said slide and standard for limiting suchreturn movement.

2. -A construction as described in claim 1,

characterized'by a miter-angle adjustably mounted upon said table, spring pressed means for" maintaining the miter=angle in frictional engagement with the table and a work clamp carried by said miter-angle.

3. A construction as described in claim 1, characterized .by a miter-angle adjustably mounted upon said table, spring pressed means beneath said table, and secured with respect to said miter-angle for maintaining said parts in frictional engagement and means for regulating the tension of said s )ring.

at. In a device of the character stated the combination of a standard, a table fixed thereto, a slide mounted upon said standard for vertical movement before the front face of said table, a shaft rotatably carried by said slide in a plane above said table, a cutter mounted upon and rotatable with said shaft said cutter being arranged in parallelism with said tableface but out of aiignment therewith and a counterbalanced lever fulcrumed to said standard and having pivotal relation with said slide for moving said cutter toward or away from the top of said table.

5. A construction as described in claim 1, characterized by a head extended horizontally from said slide and ball bearings supported by said head in which bearings said shaft is rotatably mounted.

6. A construction as described in claim 1, characterized by a guard surrounding said cutter and lubricating devices for said outter one of which is carried by said slide and the other by said guard.

7. A construction as described in claim 1, characterized by a guard fixed to said table for collecting scrap as severed by said outter said guard being located upon the side of the table nearest said manual means.

8. In a device of the character stated the combination of a fixed table, a slide movable in a vertical manner before the front face of said table, a rotatable cutter arranged. in parallelism with said table face but out of alignment therewith, manual means for moving said cutter toward or away from the top of said table, a miter-angle adjustably mounted upon said table, a work clamp carried by said miter-angle provided with a spring pressed 3' aw and means for shifting said jaw endwise for throwing same into and out of clamping position.

9. 3r construction as described in claim 8, characterized by a horizontally disposed work support fixed to said miter-angle in a plane below said work clamp.

10. In a device of the character stated a fixed table, a miter-angle adj ustably mounted upon said table, spring pressed means heneath the table and secured with respect to said miter-angle for maintaining said parts in frictional engagement, means for regu lating the tension of said sprin a slide movable with respect to said table, a cutter rotatably carried by said slide and adapted to co-operate with an edge of the table top and means connected to said slide for moving said cutter toward or away from the table top.

11. In a device of the character stated a fixed table, a slide movable with respect to said table, a head fixed to said slide, ball bearings within said head, a shaft rotatable in said bearings, a cutter adapted to co-operate with an edge of the table top at right angles thereto carried by said shaft and means connected to said slide for moving the cutter toward or away from the table top.

12. In a device of the character stated a fixed table, a slide movable with respect to said table, a rotatable cutter carr'ed by said slide and adapted to co-operate with an edge of the table top, aguard surrounding said cutter, lubricating devices for said cutter, one of which is carried by said slide and the other by said guard and means connected to said slide for moving said cutter toward or away from the table top.

13. In a device of the characterstated a ixed table, slide movable with respect to s: id table, a rotatable cutter carried by said slide and adapted to co-operate with an edge of the table top, a guard fixed to said table for collecting scrap as severed by the cutter and means connected to said slide for mov ing said cutter toward or away from the table top.

14:. In a device of the character stated fixed table, a slide movable with respect to the table. a miter-angle adjustably mounted upon said table, a work clamp carried by said miter-angle, a cutter rotatably carried by said slide, means for moving said work clamp toward or away from said cutter. means for shifting said work clamp into and out of clamping position and means connected with said slide for moving the cutter toward or away from said table.

15. In a device of the character stated a fixed table, a miter-angle adjustably mounted upon said table, spring pressed means for maintaining said miter-angle in frictional engagement with said table, means for regulating the tension of said spring, a cutter rotatably mounted above and adapted to cooperate with an edge of the table top and means for moving the cutter toward or away from the top of said table.

16. In a device of the character stated a fixed, horizontally disposed table, a cutter carrier movable in a vertical manner before the front face of said table, a cutter rotatably mounted upon said carrier in parallelism with said face but out of alignment therewith, manual means for moving the cutter from a position above said table to a position below the table top and means operative to return said cutter to normal position.

17 In a device of the character stated a fixed, horizontally disposed table, it cutter carrier movable in a vertical mannerbefore the front face of said table, a outterrotatably mounted upon said carrier in parallel ism With said face but out of alignment therewith, manual means for moving the cutter from a position above to aposition below the table top, means for adjustably limiting the downward movement of the'outter and means operative to return'said cutter to normal position. v. r o

In testimony whereof, I have hereunto signed my name.

HARRY E. SLOAN. 

